| 百色盆地那读组层序分析与生储盖组合 |
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| 引用本文： | 彭军,郑荣才,陈景山.百色盆地那读组层序分析与生储盖组合[J].沉积学报,2002,20(1):106-111. |
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| 作者姓名： | 彭军 郑荣才 陈景山 |
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| 作者单位： | 1 油气藏地质及开发工程国家重点实验室,西南石油学院,四川南充,637001; |
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| 摘 要： | 通过野外露头、钻井岩心、测井曲线和地震资料的综合分析,在识别出 4类不同成因类型和规模的层序界面基础上,将百色盆地那读组划分为 1个超长期、5个长期和 16个中期基准面旋回层序。并详细地讨论了层序与生储盖组合的关系,指出生储盖组合特征与长期基准面旋回关系最为密切,有利储层发育位置主要出现在长期基准面上升半旋回的早中期和下降半旋回的中晚期,转换面附近则是烃源岩和盖层的发育位置;各长期旋回层序的生储盖组合具不同特征,明显受基准面升降幅度、频率及其所影响的相组合、可容纳空间和A/S值变化控制;按生储盖组合在垂向和纵向上的配置关系,可划分为上生下储、下生上储、侧向运移等 3种基本组合类型。
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| 关 键 词： | 基准面旋回 层序界面 层序分析 生储盖组合 那读组 百色盆地 |
| 文章编号： | 1000-0550(2002)01-0106-06 |
| 收稿时间： | 2001-07-04 |
| 修稿时间： | 2000年7月4日 |
Sequence Analysis and Source-Reservoir-Cap Rock Associations of Nadu Formation in Baise Basin |
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| PENG Jun,ZHENG Rong-cai,CHEN Jing-shan.Sequence Analysis and Source-Reservoir-Cap Rock Associations of Nadu Formation in Baise Basin[J].Acta Sedimentologica Sinica,2002,20(1):106-111. |
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| Authors: | PENG Jun ZHENG Rong-cai CHEN Jing-shan |
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| Institution: | 1 State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum Institute, Nanchong Sichuan 637001;2 State Key Laboratory of oil and gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 6l0059 |
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| Abstract: | Through the comprehensive analysis of out crop, rock cores, well loggings and seismic data, one super-long-term, five long-term and sixteen middle-term base-level cycle sequences are distinguished in Nadu Formation of Baise basin. In this paper, the relationship between the source-reservoir-cap associations and the base-level cycle sequences of Nadu Formation are discussed in detail, and some knowledge is acquired as follows: (1) long-term base-level cycles bear close relation to source-reservoir-cap rock associtations,the main reservoir sand bodies develop in the early-middle stage of the uprising periods and middle-late stage of subsiding periods of the long-term base-level cycle, and the main hydrocarbon source rocks and favourable regional cap rocks develop at the turning position from uprising to subsiding of the long-term base-level cylce; (2) the characteristics of source-reservoir-cap rock associations developed in each long-term base-level cycle are distinctly different and controlled by the frequency, amplitude of the rising and falling of the base-level, facies association, accommodation and A/S ratio; (3) according to the spatial relationship of source rocks, reservoir rocks and cap rocks in the vertical or horizontal section of the formation, three types of basic associations can be divided. The first associations is usually of the type with source rocks in the upper and reservoirs below, the second one with source rocks below and reservoirs in the upper, and the third one with source rocks in other district. |
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| Keywords: | base-level cycle sequence interface sequence analysis source-reservoir-cap rock association Nadu Formation Baise basin |
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